Temperature Displays | McMaster-Carr

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3,815 Products

Measuring and Inspecting

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

Temperature and Humidity Meters

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

Temperature-Indicating Sheets

Temperature-Indicating Sheets

Stick to surfaces and the color changes as the temperature rises and falls

Humidity Meters

Humidity Meters

Measure relative humidity without complex calculations

Temperature Crayons

Temperature Crayons

Less messy than liquids, draw marks that melt as surfaces reach a specific temperature

Temperature-Indicating Liquids

Temperature-Indicating Liquids

Brush onto surfaces and markings melt when they reach a specific temperature

Thermal Cameras

Thermal Cameras

Detect hot spots, leaks, moisture problems, and construction defects invisible to the eye

Combustion Analyzers

Combustion Analyzers

Measure boiler and furnace combustion efficiency

Wristwatches

Display the time, date, and smart functions on your wrist and keep your hands free

Barometers

Measure atmospheric pressure changes

Oscilloscope/Multimeters

Oscilloscope/Multimeters

Perform electrical tests, record data, and view a graph of electrical waveforms

Electrical Resistance Meters

Electrical Resistance Meters

Prevent damage to electronics by checking material and surfaces for static discharge

Multimeters

Take current, voltage, resistance, and other electrical measurements

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

Data Recorder Charts

Data Recorder Charts

Place in temperature and humidity data recorders to document readings over time

Vibration Monitors

Vibration Monitors

Mount to your machine to continuously monitor vibration and ensure it stays within the proper range

Weather Stations

Weather Stations

Measure multiple weather conditions at the same time

Airflow Meters

Measure airflow in duct, air filters, exhaust hoods, and other air applications

Fluid Handling

RTD Transmitters

RTD Transmitters

Send temperature readings from RTD probes in containers, tanks, and pipes to switches and PLCs

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

RTD Connectors

Attach plug-in connectors to RTD probes with wire leads

Thermocouple Transmitters

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Thermocouples

Measure and transmit liquid, gas, and surface temperature

Thermocouple Connector Adapters

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

Temperature and Humidity Transmitters

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

Thermocouple and RTD Protection Tubes

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

Thermocouple and RTD Fittings

Thermocouple and RTD Fittings

Alter probe immersion depth or adapt unthreaded connections for use with threaded tanks and heads

Noncontact Temperature Sensors

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

Pressure Gauges

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Flow Transmitters

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

Electrical

Development Board Sensor Modules

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

Terminal Blocks

Terminal Blocks

Mate with terminals to complete circuits in control panels, motors, and small machines

Electrical Enclosure Inspection Windows

Electrical Enclosure Inspection Windows

View components without exposing them to dust and moisture

Safety Equipment

Heat Stress Monitors

Heat Stress Monitors

Measure temperature, humidity, and radiant heat to keep people safe from heat-related hazards

Communication

Labels

Stick onto items to identify or convey information about them

Heating, Ventilation, and Air Conditioning

Thermostats

Connect to heaters, fans, and air conditioners to control the temperature

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)